Nokia 1265 Description And Troubleshooting page 38

1265 (RH-103)
Baseband Description and Troubleshooting
Keypad
Faults
Page 2
Are the UI module
keys working?
YES
END
Page 38 © 2007 Nokia Corporation
NO
Measure KEYSENSE(0~4)_N
signals between QSC6010
and keypad at every outer
dome key. Are they 2.9V
+/-0.1V?
YES
Measure
KYPD_(9,11,15,13,17)
signals between
QSC6010 and keypad on
every inner dome Key.
Are they about 0V?
YES
QSC6010 is
defective, phone
can not be repaired
and must be
replace
Make sure there are no shorts
on KEYSENSE(0~4)_N. If OK,
QSC6010 is defective, phone
NO
cab not be repaired and must
be replaced. Otherwise, remove
Make sure there are no
shorts on
KYPD_(9,11,15,13,17). If OK,
NO
QSC6010 is defective,
phone can not be repaired
and must be replaced.
Otherwise, remove the short
Company Confidential
the short
Issue 1 04/2007